Omegaverse is a type of fanfiction, originally a subgenre of speculative erotic fiction and erotic slash fiction.
The plot premise in “omegaverse” works is a world where humans are divided into a dominance hierarchy, where there are the dominant “alphas”, insignificant and neutral “betas” and submissive “omegas”.
These terms are also used in etymology to describe the social hierarchy in the animal kingdom.
The genre often features fantasy elements, such as the presence of werewolves or other fantastical creatures.
The exact origin of the concept of “omegaverse” is unknown.
It was most probably popularized by the television show Supernatural, which released in 2005.
The show inspired one of the fantastical elements of “omegaverse”, the male pregnancy (mpeg) subgenre of erotic fanfiction.
As the fan communities were growing, the genre subsequently expanded in popularity to other fandoms too, particularly the ones that focused on the 2013 television series Hannibal and the 2011 show Teen Wolf.
As of 2020, over 70,000 “omegaverse” artworks and fanfictions were published on Archive Of Our Own.
Due to the popularity that it gained, “omageverse” emerged as its own genre of original commercial erotic fanfictions.
A great example is the 2007 novel With Cautionby J.L. Langley, which is notably is the first commercially published novel with Omegaverse tropes.